Synonyms to optionally

by choice, before, by election, by vote, electively, first, freely, gratuitously, in preference, independently, preferably, rather, rather than, sooner, sooner than, spontaneously, voluntarily, willfully, without coercion, abundantly, amply, bigheartedly, bounteously, bountifully, candidly, cleanly, easily, frankly, free, freehandedly, freeheartedly, generously, graciously, greatheartedly, handsomely, hospitably, largeheartedly, lavishly, liberally, munificently, openhandedly, openheartedly, openly, outright, plainly, plentifully, profusely, readily, smoothly, unceremoniously, unconstrainedly, ungrudgingly, unreservedly, unrestrainedly, unselfishly, unsparingly, unstintingly, willingly, with abandon, with both hands, with open hands, without reserve, without restraint, without stint, alone, en grand seigneur, erectly, individually, like a lord, pridefully, proudly, self-confidently, self